Matter
A curated read-later app with beautiful typography, highlights, and text-to-speech.
Free, paid from $8/mo
- Exceptional typography and reading UI
- HD text-to-speech for long articles (Premium)
- AI Co-Reader summarises and explains content
Matter vs Readwise Reader
Compare Matter and Readwise Reader side by side on features, pricing, and the workflows each one is designed for.
Readwise Reader
A read-later app for articles, PDFs, emails, tweets, and YouTube, with deep highlights and AI features.
Free, paid from $9.99/mo
- Fastest, most polished app in the read-later category
- Rich highlighting with Readwise sync to note apps
- Handles articles, PDFs, newsletters, tweets, YouTube in one inbox
Feature comparison
Here's how Matter and Readwise Reader compare across the features people actually look for. They share 19 core capabilities; the differences show up in what each tool focuses on.
| Feature | Matter | Readwise Reader | Keep |
|---|---|---|---|
| Capture and save | |||
| Browser extension | Chrome, Firefox, Safari | Chrome, Firefox, Edge, Brave | |
| Mobile apps | iOS; Android parity unclear | iOS, Android | |
| Save from email | Premium | Per-user Reader address | Forward to in.keep.md |
| Save tweets | Quoteshots + X integration | Threads compiled as articles | |
| Save YouTube videos | Premium; with transcription | With transcript highlighting | With transcripts |
| Save GitHub stars | |||
| Save PDFs | Converted to markdown | ||
| Save files (docs, spreadsheets) | PDFs, EPUBs, HTML | Word, Excel, CSV, HTML, OpenDocument | |
| Save audio files | Podcast episodes | With Whisper transcription | |
| Save via API | |||
| Auto-sync sources | |||
| RSS auto-sync | Premium | ||
| YouTube channel sync | Via RSS | ||
| X bookmarks sync | Auto-sync on paid plans; manual import from extension export on free | ||
| GitHub stars sync | |||
| Newsletter inbox sync | Premium | ||
| Library and reading | |||
| Reader view | |||
| Offline reading | Partial | ||
| Full-text search | Premium | ||
| Semantic / AI search | Ghostreader Q&A | ||
| Highlights | Unlimited on Premium | Highlight from the extension or from inside the reader, with optional notes; renders inline | |
| Notes | Unlimited on Premium | ||
| Tags | |||
| Collections | Partial | Folders | |
| Public sharing | Quoteshots for individual quotes | Partial | |
| Full-text RSS extraction | Partial | ||
| AI and agents | |||
| Markdown export for AI agents | Per-item .md URL | ||
| Bulk markdown export | Partial | ||
| MCP server | |||
| CLI tool | keep-markdown npm package | ||
| Claude Code skill | |||
| AI summaries | Premium (AI Co-Reader) | Ghostreader | AI summary and AI tagging on every saved article |
| Public API | |||
| Import and export | |||
| OPML import / export | Import from and export to any OPML-compatible reader | ||
| Pocket import | ZIP, CSV, and legacy HTML exports | ||
| Instapaper import | CSV export with folders, archive, and starred state | ||
| CSV / JSON export | Partial | Via API | Export to CSV or JSON. Import plain CSV/TSV plus Omnivore, Raindrop.io, Pinboard, and Wallabag export files. |
| Send to Kindle | Premium | EPUB delivered to your Kindle email | |
| Import Kindle highlights | Premium, via Amazon account sync | Via Readwise Kindle sync (Amazon account login) | From My Clippings.txt, no Amazon login required |
Pricing
Matter is free, paid from $8/mo and Readwise Reader is free, paid from $9.99/mo. The tier that fits best usually comes down to how many items you save each month.
Matter
- Free
Free
Unlimited library, web + mobile extensions, parsing, unlimited tags.
- $8/mo
Premium
HD text-to-speech, AI Co-Reader, RSS feeds, newsletter inbox, unlimited highlights, Kindle send, integrations.
Readwise Reader
- Free
Free
30-day trial of Readwise Full (includes Reader). No card required.
- $9.99/mo
Readwise (Full)
$9.99/mo billed annually or $12.99/mo monthly. Includes Reader, highlights sync, and export to Notion/Obsidian.
Keep
- Free
Free
Unlimited links, browser extension, API/CLI/MCP, RSS feeds, YouTube subscriptions, and free imports from bookmark export files.
- $10/mo
Plus
500 full-content items per cycle, X bookmarks, email inbox, GitHub sync, uploads, and AI features.
- $20/mo
Pro
1,000 full-content items per cycle, everything in Plus.
- $50/mo
Max
5,000 full-content items per cycle, everything in Pro.
Strengths and weaknesses
Both tools do their category well, but the specifics differ. Here's what each one is good at and where it tends to fall short.
What Matter does well
- Exceptional typography and reading UI
- HD text-to-speech for long articles (Premium)
- AI Co-Reader summarises and explains content
- Strong newsletter workflow and writer-following feed
Where it falls short
- Small team, slower update pace than bigger competitors
- No public API for scripting or integrations
- Most power-user features require Premium
- No structured markdown export for AI agents
What Readwise Reader does well
- Fastest, most polished app in the read-later category
- Rich highlighting with Readwise sync to note apps
- Handles articles, PDFs, newsletters, tweets, YouTube in one inbox
- Ghostreader AI summarises and explains highlights
Where it falls short
- Expensive compared to simpler read-later apps
- Dense UI can overwhelm casual readers
- API returns HTML, not markdown (no AI-agent-ready export)
- No MCP server or Claude Code skill
About Matter
Matter is a read-later app that leans hard on typography, audio, and AI as a co-reader. The free tier covers unlimited saves, the parser, mobile and web extensions, and unlimited tags. Premium at $8/mo or $60/yr adds HD text-to-speech, an AI Co-Reader that summarises and explains, full-text search, RSS feeds, newsletter syncing, unlimited highlights, integrations, and Kindle send. The reading UI is one of the nicest in the category. The team is small, which shows in a smaller feature set than Readwise Reader but also in a more coherent product.
About Readwise Reader
Readwise Reader is the reading companion to Readwise's highlight sync service. It handles articles, PDFs, EPUBs, emails, tweets, and YouTube transcripts in one inbox, with a Ghostreader AI copilot for summaries, definitions, and Q&A. Highlights sync to Notion, Obsidian, Logseq, Roam, Evernote, and Airtable. It ships as web, iOS, Android, and browser extensions, with a public REST API for scripting. Pricing is $9.99/mo billed annually (or $12.99/mo monthly) as part of the Readwise Full plan, which includes the highlight sync service. A 30-day free trial is available.